Hi Folks
the best way to find the thrust side of a piston is to rotate teh crank in
the direction of rotation until no 1 piston drops down the bore half way,
then look at the con rod, the thrust side of the piston is the side being
"pointed" to by a line through the con rod out of the wrist pin (little end)
to the bore surface. Hope this makes sense! The reason it is the thrust side
is because the downwards force of combustion trying to turn the crank, it is
pushing on the con rod at an angle to the bore not straight down the bore,
it is this angle that causes one side of the piston to rub down the bore and
the other not to touch.
Graham.
----- Original Message -----
From: "Hugh Fader" <hfader@usa.net>
To: "'Darrell Walker'" <darrellw@inetarena.com>; "'tr list list'"
<triumphs@autox.team.net>
Sent: Sunday, June 30, 2002 12:42 PM
Subject: RE: Piston/ring orientation
> Darrell,
>
> In addition to what others have said, do not put the gaps on the thrust
side
> of the piston. I read this in at least one of the manuals I used to
rebuild
> my TR6 engine.
>
> All you have to do now is figure out what the thrust side is. It has to do
> with which side of the piston is being pushed to the cylinder wall. Maybe
> others on the list can help.
>
> - Hugh Fader
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